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HT8402ARTZ

Public Made by Adom

by adom

HTCSEMI LED Drivers, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HT8402ARTZ

HTCSEMI · LED Drivers · SOT-23-6

HT8402ARTZ from HTCSEMI, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Power ground connection for the LED driver.
2 OUT output Regulated LED output current; output current is 20 mA typical and up to 65 mA with an external resistor, with a maximum output voltage of 38 V at Vs = 40 V.
3 OUT output Regulated LED output current; output current is 20 mA typical and up to 65 mA with an external resistor, with a maximum output voltage of 38 V at Vs = 40 V.
4 VS power_in Supply voltage input; operating range is 5 V to 40 V (at Iout ≥ 18 mA and Vs - Vout = 1.4 V) with an absolute maximum of 42 V.
5 OUT output Regulated LED output current; output current is 20 mA typical and up to 65 mA with an external resistor, with a maximum output voltage of 38 V at Vs = 40 V.
6 REXT passive Connection for an external resistor that sets the output current (up to 65 mA maximum output current).

Key specifications

Parameter Value
Manufacturer HTCSEMI
Package SOT-23-6
Category LED Drivers
Pins 6

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Current Is 340 440 520 uA Vs=10V 2
DC current gain hFE 100 140 470 - Ic=50mA, Vce=1V, Rext=0 Ohm 2
Internal Resistor Rint 37 44 53 Ohm IRint =20mA 2
Output Current Iout1 18 20 22 mA Vs=10V, Vout=8.6V 2
Voltage drop (VS - VE) Vdrop 0.83 0.88 0.93 V Iout=Iout1 2
Max Supply voltage Vs 42 V 2
Max Output current Iout 65 mA 2
Max Output voltage Vout 38 V at Vs=40V 2
Total power dissipation Ptot 750 mW TS = 125 °C 2
Max junction temperature Tj 150 C 2
Operating Temperature, Ts Top -40 125 C 2
Operating Supply voltage range Vs 5 40 V at Iout≥18mA, Vs-Vout =1.4V 2
Reverse voltage between all terminals VR 0.5 V 2
Collector-emitter breakdown voltage VBR(CEO) 40 V Ic=1mA, Ib=0 2
Output current change versus TA Iout/Iout1 -0.5 %/K Vs=10V, (Vs-Vout) =1.4V 2
Output current change versus VS Iout/Iout1 1 %/V Vs= 10V…40V, (Vs-Vout)=1.4V 2
Thermal resistance (Junction-soldering point) RthJS 50 K/W 2

CAD (KiCad official)

  • Symbol: HT8402ARTZ
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: ht8402artz-etched.step / ht8402artz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht8402artz.step / ht8402artz.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HTCSEMI datasheet (4 pp, sha256 0dab06eba47e54dd, retrieved 2026-10-20, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF